The two-core longitudinal structure of meridional wind in the middle atmosphere
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F16%3A00465351" target="_blank" >RIV/68378289:_____/16:00465351 - isvavai.cz</a>
Result on the web
—
DOI - Digital Object Identifier
—
Alternative languages
Result language
angličtina
Original language name
The two-core longitudinal structure of meridional wind in the middle atmosphere
Original language description
One of key stratospheric processes is the Brewer-Dobson circulation, which includes meridionalntransport. Kozubek et al. (2015) disclosed the existence of the two-core longitudinal structure innmeridional wind at 10 hPa in January. Here the two-core structure in meridional wind is analysed basednon MERRA data over 1979-2012 in order to find the altitudinal and seasonal dependence of this two-corenstructure and its other properties. The two-core structure covers the middle stratosphere (lower boundaryn50 hPa), upper stratosphere and lower mesosphere (up to at least 0.1 hPa). It is circulation response tonthe appearance of blocking Aleutian pressure high, which affects more or less also zonal wind,ntemperature and ozone fields. The well-pronounced two core structure occurs only in the winter half ofnthe year (October-March) and only at the Northern Hemisphere. It displays a westward shift withnincreasing altitude. The two-core longitudinal structure in meridional wind is persistent feature; only a fewnwinters (Januaries) display more complex structure. Its existence should influence the Brewer-Dobsonncirculation and also the zonal mean approach to investigations of the middle atmosphere.
Czech name
—
Czech description
—
Classification
Type
O - Miscellaneous
CEP classification
DG - Atmospheric sciences, meteorology
OECD FORD branch
—
Result continuities
Project
<a href="/en/project/GA15-24688S" target="_blank" >GA15-24688S: Variability of the ionosphere and neutral atmosphere in midlatitudes</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů